ONLY FOR IPHONE 4 AND OLDER ( ONLY ON WINDOWS )
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If you got the shsh error in snowbreeze meaning you cant downgrade
you need to save the shsh with ifaith
ou will need 6.1.2 shsh from the program tinyumbrella and you cant receive from other
people shsh
Redsnow from here: sites.google.com/a/iphone-dev.com/files/home/redsn0w_win_0.9.15b3.zip?attredirects=0&d=1
ipsw both 6.0 and 6.1.2 from : http://www.idownloadblog.com/download/
and snowbreeze from here:
https://github.com/iH8sn0w/sn0wbreezedl/archive/master.zip
hope you will like it :D
like my facebook page:https://www.facebook.com/pages/iPhone-Care/363082457126102?fref=ts
if you need help ask there :D

Finally an Untethered jailbreak for the iPad Mini & iPhone 5 on 6.x.x works with iPhone 5,4S,3GS, iPad 4,3,2 & the iPod Touch 5g,4g. More on Jailbreaking- http://InsanelyiOS.com
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Website- http://InsanelyiOS.com
Subscribe- http://j.mp/Sub-SikmeniOS
Follow us- http://twitter.com/InsanelyiOS
Stalk us- http://j.mp/FB-InsanelyiOS
Circle us- http://gplus.to/SikmenTech
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sn0wbreeze is a tool to create custom IPSWs to restore, similar to PwnageTool. It is a GUI of XPwn for Windows written in Visual Basic.Net and is developed by iH8sn0w. It is released under GPL v3 license, and its source is available on GitHub
sn0wbreeze v2.9.7
What is New?
Added 6.0 (10A403)/6.0.1 (10A523) support. (Only includes iPhone 3GS & A4 devices).
The 6.0/6.0.1 is currently a tethered based jailbreak via iBooty (except for iPhone 3GS old bootrom users).
SAM is built-in for iOS 6 hacktivations. (Hacktivated phones can reboot to a semi-tethered state after being activated [rather than just hang at the Apple Logo]). Kudos @sbingner!
Downgrading:
Use iFaith mode after selecting/downloading the appropriate IPSW for your device. You will then be prompted to browse for SHSH blobs for the IPSW you have selected.
Remember to enter a PWNED DFU state with sn0wbreeze's iREB button in the top bar of sn0wbreeze prior to (SHIFT + Restoring) the custom signed IPSW!
iREB & iOS 6:
Due to some changes in iOS 6, the current public standalone version of iREB will NOT enter a proper PWNED DFU state for restoring to custom iOS 6 IPSWs. An update for the standalone version should come sometime this week. In the meantime, use the iREB tab located in sn0wbreeze's top status bar to enter a proper PWNED DFU state.
A5(X)/A6(X) Support?:
As stated many times in the past, sn0wbreeze cannot be updated to work on A5(X)/A6(X) devices until a low level exploit in DFU or iBoot is found and made public.
A5(X)/A6(X) Baseband Preservation/Hacktivation?
For those running A5(X)/A6(X) devices and need to preserve your baseband, there is nothing you can do at the moment. For those wanting to hacktivate, the only advice I can give is to buy the carrier's SIM (the one its locked to obviously) on ebay. The SIM does not have to be active with the carrier to activate the phone.
VIDEOS-
DFU mode guide- http://bit.ly/xDM1yh
Details- http://j.mp/LoFr6k
OTHER:
Absinthe Untethered Jailbreak- http://j.mp/LoFWNJ
DOWNLOADS-
Firmware- http://j.mp/LwOLEu
sn0wbreeze- http://tinyurl.com/795bkx2